142489850 has 12 divisors (see below), whose sum is σ = 265031214. Its totient is φ = 56995920.

The previous prime is 142489817. The next prime is 142489861. The reversal of 142489850 is 58984241.

It can be written as a sum of positive squares in 3 ways, for example, as 92179201 + 50310649 = 9601^2 + 7093^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142489798 and 142489807.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1424849 + ... + 1424948.

Almost surely, 2^142489850 is an apocalyptic number.

142489850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142489850 is a deficient number, since it is larger than the sum of its proper divisors (122541364).

142489850 is a wasteful number, since it uses less digits than its factorization.

142489850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849809 (or 2849804 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 142489850 is about 11936.9112420257. The cubic root of 142489850 is about 522.3095617882.

The spelling of 142489850 in words is "one hundred forty-two million, four hundred eighty-nine thousand, eight hundred fifty".